Get Your Quote
Tell us about your project. Our team responds within 24 hours with a tailored mechanical seal solution.
No obligation
Custom-engineered designs
Worldwide Deployment
Metal Bellows Mechanical Seal
High-Temperature. High-Pressure. Zero Compromise.
Metal Bellows Mechanical Seals are engineered for extreme operating conditions in refinery, petrochemical, and process industries. The welded metal bellows provide superior torque transmission while withstanding high temperatures, high pressures, and corrosive media, ensuring exceptional sealing performance and long-term reliability.
High Temperature
Capability
High Pressure
Resistance
Corrosion &
Chemical Resistance
Longer
Service Life
Description
Metal Bellows Mechanical Seals are high-performance seals that utilize a welded metal bellows as the torque-transmitting element. Designed for high-temperature, high-pressure and corrosive applications, these seals provide reliable, leak-proof performance with extended service life.
The welded metal bellows eliminate the need for dynamic secondary seals, ensuring consistent sealing performance even under extreme operating conditions.
They are widely used in refineries, petrochemical plants, chemical processing equipment and other critical rotating machinery.
Features
- Welded metal bellows for reliable torque transmission
- Handles extreme temperature and pressure
- Excellent resistance to chemicals and corrosive media
- Balanced design for stable sealing performance
- Compact and robust construction
- Low maintenance and long service life
- Ideal for refinery and petrochemical applications
Operating Conditions
Technical Drawing
Specification
| Part | Standard Material |
|---|---|
| Rotary Face | Carbon / SIC / TC |
| Stationary Face | SIC / TC |
| Secondary Seal | Graphite / PTFE / FKM / FFKM |
| Metal Bellows | SS 316L / AM350 / Hastelloy C / Alloy 20 |
| Metal Parts | SS 304 / SS 316 / Duplex / Hastelloy |
| Seat Type | Balanced |
| Balance | Balanced |
| Direction of Rotation | Independent of Direction |
| Drive Type | By Metal Bellows |
| Mounting | Pusher / Screw / Set Screw |
Dimensional Data (mm)
| d1 | d3 | d4 | d6 | d7 | l1 | l3 | l4 | l5 | l7 | l7 | f | k | mk | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 18 | 38 | 28.0 | 35.0 | 3 | 58.0 | 46.5 | 2.0 | 5 | 9 | 19.5 | 11.5 | 5 | 5 | M5 |
| 18 | 40 | 31.0 | 37.0 | 3 | 58.0 | 46.5 | 2.0 | 5 | 9 | 19.5 | 11.5 | 5 | 5 | M5 |
| 20 | 42 | 34.0 | 40.0 | 3 | 58.0 | 46.5 | 2.0 | 5 | 9 | 19.5 | 11.5 | 5 | 5 | M5 |
| 22 | 44 | 37.0 | 43.0 | 3 | 58.0 | 46.5 | 2.0 | 5 | 9 | 19.5 | 11.5 | 5 | 5 | M5 |
| 24 | 46 | 37.0 | 43.0 | 3 | 58.0 | 46.5 | 2.0 | 5 | 9 | 19.5 | 11.5 | 5 | 5 | M5 |
| 25 | 47 | 39.0 | 45.0 | 3 | 58.0 | 46.5 | 2.0 | 5 | 9 | 19.5 | 11.5 | 5 | 5 | M5 |
| 28 | 50 | 42.0 | 48.0 | 3 | 58.0 | 46.5 | 2.0 | 5 | 9 | 19.5 | 11.5 | 5 | 5 | M6 |
| 30 | 52 | 44.0 | 50.0 | 3 | 58.0 | 46.5 | 2.0 | 5 | 9 | 19.5 | 11.5 | 5 | 5 | M6 |
| 32 | 54 | 48.0 | 56.0 | 4 | 60.5 | 46.5 | 2.0 | 6 | 9 | 22.0 | 14.0 | 5 | 5 | M6 |
| 33 | 55 | 48.0 | 56.0 | 4 | 60.5 | 46.5 | 2.0 | 6 | 9 | 22.0 | 14.0 | 5 | 5 | M6 |
| 35 | 57 | 51.0 | 58.0 | 4 | 60.5 | 46.5 | 2.0 | 6 | 9 | 22.0 | 14.0 | 5 | 5 | M6 |
| 38 | 67 | 54.0 | 61.0 | 4 | 60.5 | 46.5 | 2.0 | 6 | 9 | 22.0 | 14.0 | 5 | 5 | M6 |
Dimensional Data (mm)
| d1 | d3 | d4 | d6 | d7 | l1 | l3 | l4 | l5 | l7 | l7 | f | k | mk | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 | 66 | 58.0 | 63.0 | 4 | 61.5 | 47.5 | 2.0 | 6 | 9 | 22.0 | 14.0 | 5 | 6 | M6 |
| 43 | 69 | 59.0 | 70.0 | 4 | 61.5 | 47.5 | 2.0 | 6 | 9 | 22.0 | 14.0 | 5 | 6 | M6 |
| 45 | 71 | 62.0 | 70.0 | 4 | 62.5 | 47.5 | 2.5 | 6 | 9 | 23.0 | 15.0 | 5 | 6 | M6 |
| 48 | 74 | 64.0 | 72.0 | 4 | 62.5 | 47.5 | 2.5 | 6 | 9 | 23.0 | 15.0 | 5 | 6 | M6 |
| 50 | 76 | 67.0 | 75.0 | 4 | 62.5 | 47.5 | 2.5 | 6 | 10 | 23.0 | 15.0 | 5 | 6 | M6 |
| 60 | 81 | 81.0 | 90.0 | 4 | 66.5 | 47.5 | 2.5 | 6 | 10 | 23.0 | 15.0 | 5 | 6 | M6 |
| 70 | 86 | 91.0 | 110.0 | 4 | 82.0 | 47.5 | 2.5 | 6 | 10 | 23.0 | 15.0 | 5 | 6 | M6 |
| 70 | 86 | 91.0 | 110.0 | 4 | 72.0 | 47.5 | 2.5 | 6 | 10 | 23.0 | 15.0 | 5 | 6 | M6 |
| 80 | 106 | 98.0 | 110.0 | 4 | 72.0 | 47.5 | 2.5 | 6 | 10 | 23.0 | 15.0 | 5 | 6 | M6 |
| 95 | 108 | 98.0 | 110.0 | 4 | 110.0 | 47.5 | 2.5 | 6 | 11 | 23.0 | 15.0 | 5 | 6 | M6 |
| 95 | 103 | 108.0 | 130.0 | 4 | 120.0 | 47.5 | 2.5 | 6 | 11 | 23.0 | 15.0 | 5 | 6 | M6 |
| 100 | 126 | 118.0 | 130.0 | 4 | 125.0 | 47.5 | 2.5 | 6 | 11 | 23.0 | 15.0 | 5 | 6 | M6 |
Applications
Refineries
Petrochemical Plants
Heat Transfer Systems
Reactor & Vessels
Hot Oil Pumps
Chemical Processing
Hydrocarbon Service
High Temp. Process Pumps
Boiler Feed Pumps
Aggressive Chemicals
Quality Assured
Manufactured with precision and tested for reliability
Custom Solutions
Materials and designs tailored to your application
Fast Delivery
Quick turnaround time for all orders
Expert Support
Technical assistance from experienced engineers
IDEAL SEAL TECH
Need a Reliable Sealing Solution?
Talk to our experts today and get the best solution for your application.